Nozzle for cotton-pickers.



11. HARTWELL, 1R. NOZZLE FOR COTTON PIOKERS.

APYLIIOATION FILED AUG. 30 1913.

Patented Sept. 1,1914

' To all whom it may concern UNITED er-Arne.

ononon nanny HARTWELL,

are, or SAN- anaemic. amt.

NOZZLE 'ron common-moms.

' Specification of. Letters latent. Application filed AugustSO, 1913.Serial No..787,492.

Patented Sept. 1, .1914.

Be it known that I, GEORGE HARRY HART- WELL, Jr., a citizen of theUnited States,

residing at San Antonio, in the county of Bexar and State of Texas, haveinvented new and useful Improvements in Nozziles for Cotton-Pickers, ofwhichthe following ,is a specification.

The present invention has reference to nozzles for cotton pickers,and'it proposes, briefly, an improved device. of the general typeorcharacter'specified which is operable in such a manner as to permit thesuction to'be exerted suddenly upon a boil when the nozzle is placedthereover, whereby the boll is stripped by a quick'jerk from the bur anddrawn into and through the nozzle.

An embodiment of the invention is ill-ustrated in the accompanyingdrawing, whereof Figure 1 is a perspective view of the improved nozzleattached to a suction hose;;

Fig. 2 is an enlarged longitudinal sectional view of the nozzle; Figs. 8and 4 are longitudinal sectional views, taken at right angles to eachother, through the mouth-piece of thenozzle; and Fig. 5 is a transversesection taken on line 55, Fig. 4.

In said drawing, 1 denotes, in a general manner, the improved nozzle,and 9 the hose to which the same is attached. The first of these twoparts or elements is preferably composed, as shown; of juxtaposed,parallel main and auxiliary tubes 3 and 4, the former having its rearend coupled directly to the; 4

When it is desired to operate the implement,

hose in any suitable manner, and its front end bent laterally to producethe picking portion or mouth-piece 5 of the nozzle. The auxiliary tube 4is somewhat shorter than the main tube and is joined thereto at itsfront end by an integral neck 6, which atfords a means of communicationbetween the tubes, its rear end being open and, preferably, cut away atan angle. The passage of the air current through the latter end of theauxiliary tube into that tube and thence through neck 6 into the maintube is controlled by means of a valve 7 which,

in the present instance is pivoted to the,

the valve 7, this device being hereshown as consisting of two vcoacting,aw-like, spring elements that are arranged opposite each other withinsaid mouth-piece and between the front and rear walls thereof, asdepicted in F1gs..4 and 5. These spring "elements are preferablycomposed, each,"ofva series I of structurally-separate fingers 10 thatare edge of the mouth-piece and are in the nature of leaf springs, thetwo sets' of spring fingers being bowed toward each other, so as tosubstantially prevent the passage of air through the mouth-piece underordinary conditions, and being guided or held in place by theaforementioned front and rear walls of the said mouth-piece, betweenwhich walls they project, as shown in Fig; 5. The mouth-piece is furtherequipped with a tuleather or other flexible material, the throatextending between the s ring fingers 10 and the above-specified wa ls,and being normally closed or constrictedlbyi the'foriner, which bearthereagainst. Y

As above stated, the mouth-piece 5 is normally closed, and the free orrear end of the auxiliary tube 4 is normally. open, so that the currentof air which is caused to flow I suction fan or like device, (notshown), will enter the afore-mentioned end of tube 4: andpass through.the latter into the main tube 3 by way of the connecting neck 6.

however, the mouth-piece is placed over the boll and the valve 7 movedto closed posiwhereupon the course of the air current will besuddenlychanged, the air then being forced to enter the nozzle throughthe mouth-piece- As a result, theair in entering, will force the twospring jaws apart and will jerk the boll quickly from its bur, the boilpassing through .the mouth-piece intothe body of the nozzle, and thencethrough the hose in the usual manner.

Having described my invention, I claim Asuction nozzle comprising mainand auxiliary tubes arranged side by side, the auxiliary tube having oneend open and the other end communicating with the main tube; a valvelocated at the open end of the auxiliary tube, to control the passage ofthe air current through said tubes; means for device which is itselfunder the control of' attached at their outer ends to the outer throughthe nozzle by the action of the usualtion by a quick manipulation ofhandle 8,

bular throat 11 of suitable textile fabric,

llO

normally holding said valve in open. position; means for closing saidvalve against the action of said holding means; and a yielding closurefor the inlet end of the main-tube under the control of said valve.

2. A suction nozzle comprising communieating main and auxiliaryt'iibes,the former having its mouth-pieceaprovidcd with a yielding,interiorly-located closure composed of a flexible, tubular throat, and apair of spring jaws arranged upon opposite sides of said throat fornormally constricting the same, said mouth-piece having a portionlthereof constituting a pair of oppositely-ar-i ranged guides betweenwhich said throat ex-j trends and said jaws Work; and a valve co-\operativewith the auxiliary tube for regu-i lating the passage of theair current through that tube into ,the main tube, to control theoperation of said closure.

3. A suction nozzle comprising main and auxiliary tubes arranged side byside, the

auxiliary tube having one end open and a neck connecting its other endwith the main tube; a movable'valve for controlling the 1 passage of theair current through said neck; and a end of the main tube under thecontrol of said valve, said closure embodying a flexible,

tubular throat, and a pair of jaws arranged of said throat and conuponopposite sides ylelding fingers bowed sisti ng'of sets of I toward saidthroat to normally constrict the same, said mouthpiece having a portionthereof constituting a pair of oppositelyarranged guides between whichsaid throat extends and said jaws Work.

4-. A suction nozzle comprising main and auxiliary tubes arranged sideby side, the auxiliary tube having one end open and a neck connectingits other end with the main tube; a valve for controlling the passage ofthe air'eurrents through said neck; and a yielding closure for the inletend of the main tube under the control-of said valve, said closureembodying a flexible, tubular throat and a pair of yielding jawsarranged upon opposite sides of said throat for normally constrictingthe same.

yielding closure for the inlet 5. A suction nozzle comprising main andauxiliary tubes arranged side by side, the auxiliary tube having one endopen and a neck connecting its other end with the main tube; a valve forcontrolling the passage of the air current through said neck; means fornormally holding said valve in open position; means for closing saidvalve against the action of said holding means; anda yielding closuremain tube under the control of said valve, said yielding closureembodying a flexible, tubular throat and, a pair of yielding jawsarranged upon opposite sides of said throat for normally constrictingthe same.

6. The combination, with a suction pipe: of a nozzle therefor comprisingmain and auxiliary tubes arranged side by side, the main tube having itsoutlet end connected directly to said pipe, and theauxiliary tube havingoneend open and the other end communicating directly with said maintube; a movable valve for controlling the passage of the air currentinto said main tube from said auxiliary tube; and a yielding closure forthe inlet end of said main tubeiinderthe control of said valve.

7. The combination, With a suction pipe; of a nozzle therefor comprisingmain and auxiliary tubes arranged side by side, the main tube havin itsoutlet end connected directly to saidplpe, and the auxiliary tube havingone end open and the other-end communicating directly with said maintube; a spring-controlled valve pivoted to one of said tubes andoperable from the exterior thereof to control the passage of the aircurrent into said'main tube from said auxiliary tube; and a yi eldingclosure for the inlet end of said main tube under the control f saidvalve. V

In testimony whereof I have hereunto set my hand in presence of twosubscribing Wit nesses.

GEORGE HARRY HARTWELL, J11.

for the inlet end of the

